Segment Reporting Information by Segment (Detail) - USD ($) $ in Millions	3 Months Ended		8 Months Ended		12 Months Ended
	May 12, 2019	May 13, 2018	May 12, 2019	May 13, 2018	Sep. 02, 2018
Segment Reporting Information [Line Items]
Total Revenue	$ 34,740	$ 32,361	$ 105,205	$ 97,165	$ 141,576
Operating Income	1,122	1,067	3,274	3,034	4,480
Depreciation and amortization	336	327	1,019	1,006	1,437
Additions to property and equipment	672	585	1,989	1,913	2,969
Net property and equipment	20,475	19,178	20,475	19,178	19,681
Total Assets	43,752	39,605	43,752	39,605	40,830
Operating Segments [Member] | United States Operations
Segment Reporting Information [Line Items]
Total Revenue	25,536	23,475	76,958	69,975	102,286
Operating Income	736	682	2,108	1,818	2,787
Depreciation and amortization	260	242	764	756	1,078
Additions to property and equipment	500	468	1,428	1,323	2,046
Net property and equipment	14,020	12,924	14,020	12,924	13,353
Total Assets	30,416	27,062	30,416	27,062	28,207
Operating Segments [Member] | Canada Operations
Segment Reporting Information [Line Items]
Total Revenue	4,792	4,647	14,561	14,163	20,689
Operating Income	213	210	625	652	939
Depreciation and amortization	32	31	100	94	135
Additions to property and equipment	38	42	209	156	268
Net property and equipment	1,917	1,829	1,917	1,829	1,900
Total Assets	4,637	4,248	4,637	4,248	4,303
Operating Segments [Member] | Other International Operations
Segment Reporting Information [Line Items]
Total Revenue	4,412	4,239	13,686	13,027	18,601
Operating Income	173	175	541	564	754
Depreciation and amortization	44	54	155	156	224
Additions to property and equipment	134	75	352	434	655
Net property and equipment	4,538	4,425	4,538	4,425	4,428
Total Assets	$ 8,699	$ 8,295	$ 8,699	$ 8,295	$ 8,320